• NSF NEON | Open Data to Understand our Ecosystems
  • Biorepository Data Portal

  • Home
  • Search
    • Sample search
    • Map search
    • Dynamic Species List
    • Taxonomic Explorer
  • Images
    • Image Browser
    • Image Search
  • Checklists
    • Research Sites - Invertebrates
    • Research Sites - Plants
    • Research Sites - Vertebrates
  • Sample Use
    • Sample Use Policy
    • Sample Request
    • Data Usage Policy
  • Additional Information
    • Tutorials and Help
    • About NEON
    • NEON Data Portal
    • ASU Biocollections
    • About Symbiota
  • Getting Started
Login New Account Sitemap
Nuttallanthus texanus (Scheele) D.A. Sutton  
Family: Plantaginaceae
Texas toadflax
[Linaria canadensis var. texana (Scheele) Pennell, moreLinaria texana Scheele]
Nuttallanthus texanus image
Liz Makings  
  • Field Guide
  • Web Links
Wiggins 1964, Kearney and Peebles 1969
Duration: Annual Nativity: Native Lifeform: Forb/Herb General: Slender, erect, annual or biennial with 1 to several branches 10-80 cm long from base, stems and leaves glabrous, dark green. Leaves: Glabrous, dark green, rather densely leafy below, pedunculate-racemose above; leaves of sterile stems crowded, ovate, elliptic or linear, entire, obtuse to acute at both ends, 1-3 mm wide, 3-20 mm long, petioles 1-2 mm long; leaves on fertile stems linear to linear-oblong, opposite or ternate at base of stem; alternate above, entire, acute or obtuse, sessile, 1-3 mm wide, 5-30 mm long. Flowers: Raceme spikelike, 5-30 cm long, on peduncles 2-15 cm long, pedicels filiform, 2-10 mm long, glabrous or finely and sparsely glandular-puberulent, bracts subulate .5-2 mm long, calyx lobes lanceolate, 2-3 mm long, corolla pale blue with darker veins, 9-12 mm long (exclusive of spur); upper lip 4-5 mm long, reflexed, oblong lobes 2-3 mm long, lower lip deflexed-spreading; palate prominent, densely pubescent. Fruits: Capsule globose to subcylindrical 2.5-4 mm long, irregularly dehiscent. Ecology: Found on arroyos, stream banks, and on grassy hillsides or in open chaparral; 1,500-5,000 ft (457-1524 m); flowers March-June. Distribution: Much of western N. America, most states in the US except the east coast; south to n MEX and in S. Amer. Notes: Distinct in our area by being an erect biennial with dense leaves below compared to above and spikes of purple, blue or white, two-lipped flowers with long nectar spurs coming out of the backsdes. Often found in cracks in rocks and in slightly wetter microsites. Ethnobotany: Unknown Etymology: Nuttallanthus is named for Thomas Nuttal (1786-1859) an English botanist. Synonyms: Linaria canadensis var. texana, L. texana Editor: SBuckley 2010, FSCoburn 2015
  • BOLD Systems - Barcode of Life Data Systems
  • Encyclopedia of Life
  • Flora of North America
  • Google Images
  • Google Search Engine
  • International Plant Names Index
  • NCBI - National Center for Biotechnology Information
  • USDA PLANTS Database
  • W3Tropicos
Nuttallanthus texanus
Open Interactive Map
Nuttallanthus texanus image
Liz Makings  
Nuttallanthus texanus image
Patrick Alexander  
Nuttallanthus texanus image
Patrick Alexander  
Nuttallanthus texanus image
Patrick Alexander  
Click to Display
5 Total Images
NSF NEON | Open Data to Understand our Ecosystems The National Ecological Observatory Network is a major facility fully funded by the National Science Foundation. Any opinions, findings and conclusions or recommendations expressed in this material do not necessarily reflect the views of the National Science Foundation.